Freelance backend Developer

Required Freelance backend Developer
About us:
We are dedicated to offering personalized, high-quality education globally at anaffordable price. We leverage AI technology and learning methodologies to tailor education toeach student's unique needs and aspirations, focusing on critical thinking, problem-solving, andpractical application of knowledge. We will revolutionize education by empoweringindividuals to excel in their careers and lead fulfilling lives.
Role Overview
As the backend Engineer, you will architect and maintain the core systems thatdrive our AI-powered learning platform. Youll be responsible for designing scalable APIs,managing high-performance databases, and integrating AI services into our educationalbackendall within a type-safe, Developer -friendly environment.
Youll work closely with our frontend, DevOps, and AI teams to ensure that students receivefast, seamless, and reliable learning experiences. From clean code to deep system thinking, youll be a foundational part of building a platform that redefines how personalized, university-level education is delivered worldwide.
If youre passionate about clean architecture, well-documented APIs, and pushing the boundaries of what backend systems can do, this is your opportunity to make a global impact.
Tech Stack:
API Layer
tRPC for end-to-end type-safe APIs
Express.js for standalone API services
Zod for runtime type validation
Database & ORM
PostgreSQL
Drizzle ORM
Database migrations
Testing
Vitest for unit testing
Integration testing
Infrastructure
Docker for containerization
PNPM for package management
Monorepo architecture
AI Integration
AI-powered teaching assistants
Conversation management
Key Responsibilities:
API Development
Design and implement type-safe tRPC procedures
Build and maintain Express.js microservices
Implement proper error handling and logging
Database Management
Design and maintain database schemas
Write and manage database migrations
Optimize database queries
Testing & Quality
Write comprehensive unit tests
Implement integration tests
Maintain TEST coverage standards
AI Integration
Integrate with AI services
Manage conversation state and context
Handle AI service errors and retries
Code Quality
Write clean, maintainable code
Follow TypeScript best practices
Document code and APIs
Why Join us?
Help build the backend of a world-class, AI-powered education platform-Tackle meaningful problems that advance personalized learning-Collaborate in a highly skilled, mission-driven engineering team-Work with a modern, elegant, type-safe backend stack-Enjoy creative freedom and autonomy in building scalable systems-Competitive salary, benefits, and growth potential-Be part of a global movement to revolutionize higher education with reason, clarity, and truth
How to Apply:
Please send a short cover letter and any relevant project samples or portfolios. Tell us who you are, what excites you about backend development and education, and why you're the right person to help us scale.